Add support to check for dead links in documentation.

Author: brownts

.github/workflows/lint_docs.yml

@@ -29,3 +29,6 @@ jobs:
 
     - name: Lint Project Documentation
       run: npm run lint-docs
+
+    - name: Lint Documentation Links
+      run: npm run link-check

.vscode/tasks.json

@@ -79,6 +79,14 @@
 			"args": ["run", "lint-docs"],
 			"problemMatcher": "$markdownlint"
 		},
+		{
+			"label": "npm:link-check",
+			"detail": "Link Check Project Documentation",
+			"type": "shell",
+			"command": "npm",
+			"group": "build",
+			"args": ["run", "link-check"]
+		},
 		{
 			"label": "npm:spellcheck-docs",
 			"detail": "Spellcheck Project Documentation",